Katy Independent School District officials said rumors were spreading that someone planned to harm people at campuses on Friday, coinciding with the Mayan calendar prediction that the world would end that day.

"We're all going to die one day for sure," said Martin, "I hope not tomorrow."

In a letter, the district said it has tried talking to students with first-hand knowledge of the origins of these rumors. But officials said they haven't found evidence of danger coming Friday. So Mata planned to be in class.

"I'm still going to go," said Mata. "I have mid-terms."

Others are still worried. Several parents emailed Local 2 about similar rumors at Salyards Middle School, La Porte High School, Willis High School, Klein Collins High School, Ball High School, Humble High School and Schindewolf Intermediate. Fears were also spreading about Magnolia High School on Facebook. District officials across these areas said so far, the threats all appear to be rumors.

Houston police chief Charles McClelland said his officers are trained and ready if needed.

"It's understandable that people are on edge," McClelland said. "School is a place where students should be educated and safe. But no, we haven't seen an uptick in calls."

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